Andeew eosewatee



(No Mode.)

A. ROSBWATER.

FLUSHING TANK.

PatentedJune 1-5, 1886.

i i Q @SEQ .,.w ,1, w Q 1,; W )fifi/s.

INEJVTOR WIT ESSES mui N4 wetens. Pnwumognpw. wusmngmn. uc.

NITED STATES PATENT GEEICE.

ANDREW EosEwATEE, oE OMAHA, Nunn AsKA.

FLUSHlNG-TANK.

sPEorrrcArroN forming part of Letters Patent No. 343,853, eared .Tune15,1886.

Application led February 26, 1886. Serial No. 193,292.

To a/ZZ whom it may concern.-

Be it known that I, ANDREW RosEWA'rEE, a citizen of the United States,and a resident oi' Omaha, in the county of Douglas and State ofNebraska, have invented certain new and useful Improvements inFlushing-Tanks; and I do hereby declare that the following is a full,clear, and eXact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, which form a part ofthis speciiication, and in which- Figure 1 is a vertical sectional viewof a tank provided with my improved lushing apparatus. Fig. 2 is asectional view of a moditied form of the inlet-pipe, and Figs. 3 and 4are sectional views of the apparatus applied to different forms ofsiphon-pipes.

The same letters of reference indicate corresponding parts in all thegures.

This invention relates to automatic ilushing-tanks, as willbehereinafter fully described, and pointed out in the claims.

Referring to the accompanying drawings,A represents a tank which issupplied with a siphon-pipe, B, the longer arm of which is provided witha trap, C. This pipe B can pass out of the tank through the bottom, asshown in Fig. l, or it can pass out near the top, as shown in Fig. 3,and instead of being bent at the top it can be in the form of aninverted cup or bell placed over the top of an open pipe, as shown inFig. 4.

Secured to the top of the siphon, and communicating with its interior,is a pipe, D, the end of which is provided with a T-connection, E.Entering the top part of this T is the inlet-pipe, F, through which thetank is lled. Each of these pipes are supplied with regulating-cocks dand f, respectively. rlhe mouth of the inlet-pipe opens a trile belowthe middle of the T, and can be full size by making the lower part ofthe T atriile larger than the top part, so that the stream of water willnot quite fill it, or the end of the inlet-pipe can be slightlycontracted, as shown in Fig. 2, which will answer the same purpose.

Communicating with the interior of the siphon-arm, just above the trap,is a pipe, G, the upper end of which is bent downward and (No model.)

opens into the tank near the top of the siphon. It can be placedentirely within the siphon, as shown in Fig. l, in which case the topot' it will pass through the siphon near to or at the curve at thetop ofthe siphon. In Figs. 3 and 4 it is ,shown as entering the pipe near thebottom and passing up the outside of the siphon.

The operation of the device is as follows: As water enters the tankthrough the T-eonnection it draws a current of air through the pipe D,which thus exhausts the air from the siphon. As the trap C is constantlysealed, the siphon can only receive a new supply of air through the pipeG, which it does until the water rises high enough in the tank to coverthe upper end of it. As soon as the mouth of the pipe G is covered, andwhich happens when the water is nearly ready to begin to flow over thebend at the top of the siphon, a vacuum begins to be formed in thesiphon, which the water in the trap and in the short arm of the siphonfills by rising. As soon as the water in the short arm of the siphonreaches the bend in the top it begins to overflow, and thus iill thelong arm as the air is exhausted from it, until finally the entireamount of air is exhausted, and the water in the two arms of the siphonis joined, and siphonage commences. As the bottom of the pipe G is belowthe bottom of the short arm of the siphon, the air which enters throughit as soon as its top is uncovered by the water as its level in the tankis lowered will not render the siphon inoperative.

By means of the construction shown in Fig. 3 the siphon can be takenoutthrough the wall above the high-water line inthe tank, so that` allleakage at such place will be avoided. The upper end or mouth of the\pipe G is located at such a distance below the bend of the siphon thatthe water in the trap will not be drawn up into the longer arm of thesiphon sufliciently to permit of the entrance of air before the water inthe shorter arm has been drawn upto and over the bend of the siphon bythe exhaustion of the air from the siphon after the mouth of the pipeGhas been closed.

By the above-described arrangement tanks can be regularly andeffectively iushed by means that are simple and cheap, and at the IOOSame time all sewer gas is prevented from esoaping on account ofthetrap, which is constantly filled.

Having thus described my in vention,I claim and desire to secure byLetters Patent of the United Statesl. The combination, with asiphon, ofa pipe communicating with the top thereof, the end of Said pipe beingprovided with an enlarged portion, an inlet-pipe the end of which isWithin the enlarged portion of the other pipe, a vertical pipe the lowerend of which communicates with the interior of the Siphon below thebottom ofthe short arm,and its upper end communicates with the tank anda trap at the bottom of the si phon, aS shown and described.

2. The cornbinatio1i,with a Siphon, ofa pipe communicating With the topthereof, the end of said pipe being provided with a T-connection, aninlet-pipe the end of which is within said T'connection and below itsmiddle portion, a pipe upon the outside of the Siphon, the lower end ofwhich communicates with the Siphon below the bottom of its short arm andthe top of which is bent downward, said pipe and Siphon passing throughthe side of the tank above the water-level, and a trap at the bottomofthe Siphon, asA Shown and described. In testimony that I claim theforegoing as my own I have hereunto affixed my signature in presence oftwo witnesses.

ANDREW ROSEVATER. VitnesseS:

' A. B. HUNT, J. N. HYNN.

